MOFLASH SIGNALLING IS-S-02 Installation & Technical Information Download Page 9

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End of line monitoring is applicable to the Sounder Product. For this to func-

tion correctly the resistor must be connected between the IN+ terminal and the

Sounder Negative Supply. A suitable Zener Barrier which can allow reverse

polarity monitoring to take place and a fire panel compatible with Intrinsically

Safe products must also be used.

If required, an external switch can be wired in series with the (1) and/or (2)

connections to give independent remote change over from 1

stage to 2

stage

tones. This switch must conform to Intrinsically Safe installation (EN 60079-

0:2012 + A11:2013, EN 60079-11:2012, EN 50303:2000).

Summary of Contents for IS-S-02

Page 1: ...INFORMATION PLEASE READ PRIOR TO INSTALLATION Website www moflash com Email technical moflash co uk Moflash Intrinsically Safe Sounder Range S00608 Issue 7 28 07 2020 AUDIBLE SIGNALLING DEVICES 1 APPR...

Page 2: ...nd of Line resistor compatible 2 0 Intrinsically Safe Labelling The product will have an individual serial number printed onto the head base plate an example of the sounder label is shown below These...

Page 3: ...t time Zone 20 Explosive dust air mixture is continuously present Zone 21 Explosive dust air mixture likely to occur in normal operation Zone 22 Explosive dust air mixture not likely to occur and if i...

Page 4: ...astic shown in Fig 1 with side cutters or a similar tool To open a locked head remove the small rubber bung from the hole on the side of the sounder insert a tool into the hole and depress the clip wh...

Page 5: ...the base by rotating anticlockwise until it comes free Remove the appropriate fixing hole and conduit knockouts from the back box The back box provides IP66 protection For this to be maintained suitab...

Page 6: ...llation of the IS S 02 Sounder head unit onto the installed base the alarm tone must be set see page 5 To control the Sounder use either a switch in the safe area on either the positive or negative li...

Page 7: ...necting the Beacon ground pin to 0v as detailed in the table on page 5 For this application a barrier with 2 Diode return paths is required as shown in the diagram below Switching between return paths...

Page 8: ...d in the entity parameters section of the installation sheet The Sounder can be turned on and off either by using a suitably placed switch in the positive or negative rails switch must be of suitable...

Page 9: ...ch can allow reverse polarity monitoring to take place and a fire panel compatible with Intrinsically Safe products must also be used If required an external switch can be wired in series with the 1 a...

Page 10: ...n sustained during its normal operation The enclosure is non conducting and may generate an ignition capable level of electrostatic charge under certain extreme conditions It is the responsibility of...

Page 11: ...e units up without the correctly rated barrier could damage these products and so void any protection ratings Specific Conditions of Use 1 Clean equipment regularly to prevent dust build up with a dam...

Page 12: ...14 400Hz O I I O I O 18 92 15 550Hz 0 7s 1000Hz 0 33s O I I I O O 1 93 16 1500Hz 2700Hz 3Hz O I I I I O 1 98 17 750Hz I O O O O O 1 93 18 2400Hz I O O O I O 1 105 19 660Hz I O O I O O 18 93 20 660Hz...